A small and classic collapse style game that's pretty difficult to solve since you need to remove all blocks to complete a level. Fortunately you need to click groups of only two same colored blocks to remove them.
Remove all blocks from the board to reach the next level. To remove them, click on a group of two or more same colored blocks. The bigger the group, the more points you get. Created gaps are filled with blocks from above the gap. If a whole column is empty, all remainfing columns to the right will slide to the left.